USACE Baltimore
@USACEBaltimore
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U.S. Army Corps of Engineers, Baltimore District 🏰 #BuildingStrong in the mid-Atlantic and National Capital regions. Likes ≠ endorsements.
Joined October 2012
New today: the latest updates to the Francis Scott Key Bridge response. 🏰 This salvage operations plan is part of a dynamic situation, and both the plan and graphic will be updated as engineering data becomes known. #FSKBridge @USACEHQ
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📷 JUST RELEASED: This imagery, supplied by the @USNavy Naval Sea System Command (NAVSEA).Supervisor of Salvage and Diving (SUPSALV), shows the wreckage resting at the bottom of the river where the Francis Scott Key Bridge once stood. #FSKBridge 1/3
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More views of Sunday’s 440-ton lift 🏗️ The Chesapeake 1000 is the largest floating crane on the Eastern Seaboard, and removing these large pieces will help open a Limited Access Channel that allows one-way ship traffic to the @portofbalt. #FSKBridge
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Re-float update: The M/V DALI became buoyant at roughly 6:40 a.m. As of 7:00 a.m., it is currently being moved by tugboats under favorable environmental conditions. #FSKBridge.
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A Unified Command longshoreman stands next to a massive 200-ton hydraulic salvage grab that arrived this weekend at Sparrows Point after a weeklong barge journey from Galveston, Texas. 🏗
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Watch: Small charges were detonated by the Unified Command today to remove the large “section four” truss resting on the bow of the M/V DALI. 🚢🏗️ This step completely disconnected the ship from the #FSKBridge wreckage in the water and federal navigation channel.
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In this 6x speed timelapse from Friday afternoon, Unified Command salvors use the crane barge Chesapeake 1000 to move a large piece of supporting steel at the #FSKBridge site. 🏗️ Wreckage removal is ongoing to safely and efficiently open the Fort McHenry channel.
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NEW TODAY: Unified Command salvors use the crane barge Chesapeake 1000 to move a large piece of supporting steel from the collapsed #FSKBridge on Sunday.
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The Key Bridge Response Unified Command is scheduled to use precision cuts made with small charges to remove a large section of the #FSKBridge wreckage from on top of the M/V DALI.
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Salvage crews on June 3-4 successfully removed the final large steel truss blocking the full 700’ wide federal channel, a two-day lift requiring concrete breakers, underwater surveys, & oxyacetylene torches to separate tons of #FSKBridge concrete roadway, cable, and steel rebar.
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The first commercial vessel transited through the Limited Access Channel at the #FSKBridge site Thursday, part of scheduled passages for a limited number of commercial vessels into the @portofbalt and a departure opportunity for deep draft vessels unable to leave the harbor.
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Before ➡️ After — Unified Command salvors are this week continuing wreckage removal from the M/V DALI in preparation for the removal of the "section four" bridge span and refloating of the vessel, including cuts to this large concrete #FSKBridge pier. 🏗
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NEW TODAY: These sonar CODA images, provided by @USNavy’s Naval Sea Systems Command (NAVSEA) Supervisor of Salvage and Diving (SUPSALV), show bridge wreckage in the deepest part of the federal shipping channel and one of the Francis Scott Key Bridge main supports.
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Sunday update: The refloat/transit of the DALI from its current location to a local marine terminal is tentatively scheduled for Monday morning, with the full sequence estimated to begin roughly 18 hours beforehand, starting midday today, Sunday.
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Salvage crews are currently lifting one of two 500+ ton sections of the #FSKBridge truss that remains in the federal navigation channel, seen here this morning at sunrise as it was rigged up. 🏗
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Take a more detailed look at our Salvage Operations Plan (including efforts to establish a limited access channel) in this updated animation. 🏗 The Unified Command is undertaking this work with care and precision to restore full service to the @portofbalt. #FSKBridge
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New aerial photos from @MDSP show the #FSKBridge site as commercial traffic returns — and the shrinking amount of steel wreckage remaining in the federal navigation channel.
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NEW: The refloat and transit of the M/V DALI from its current location to a local marine terminal is slated for Mon. morning, May 20 (subject to change). The refloat/transit sequence is deliberately designed to ensure all response personnel around the M/V DALI maintain control.
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Just released: In new video from one of the dive barges in the #FSKBridge response, we can see and hear the dive supervisor giving directional and work instructions to the diver due to very low visibility in the water (who is reporting back inspection results) — 1/3
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NEWS RELEASE: As part of the #FSKBridge Unified Command, USACE and the @usnavy Supervisor of Salvage & Diving today restored the federal channel to its original operational specs (700’ wide x 50’ deep) for commercial maritime transit through the @portofbalt. Link in thread:
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Updated #FSKBridge salvage operations plan includes concurrent priority of establishing a limited access channel on the opposite side of federal channel from DALI. ⚓ Our commitment to supporting the Unified Command in recovery of the missing victims remains our top priority.
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Debris and wreckage removal continues to safely and efficiently open the Fort McHenry channel. 🏗 In this photo from Wednesday, the scale of the effort is evident as salvors on a barge examine wreckage from the #FSKBridge collapse removed from the Patapsco River.
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This updated infographic shows the two Temporary Alternate Channels surveyed and opened by the @USCG in the week following the #FSKBridge collapse, as well as details about our ongoing efforts to open a 35' deep limited access channel within the federal channel span.
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Salvage crews on June 1 completed the lift of a 470-short-ton (940,000 pounds) steel section of #FSKBridge truss from the federal navigation channel. 🏗 Buried deep in the river mudline, the section was part of the massive steel truss that pinned the M/V DALI for seven weeks.
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Small charges were detonated by the Unified Command on Monday evening to remove and break apart the large #FSKBridge truss resting on the bow of the M/V DALI. 🏗️ Officials are continuing the inspections necessary to mitigate risk once it’s carefully re-floated and removed.
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Unified Command salvors are preparing for the removal of #FSKBridge “section four,” which lies across the bow of the M/V DALI. Read the latest release:
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By the numbers: an estimated 50,000 tons of steel & concrete make up the wreckage of the total collapsed span of the #FSKBridge 🏗 For comparison, that's about equal to the weight of 3,800 fully loaded dump trucks — a helpful way of understanding the scale of the task at hand.
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The Captain of the Port on Friday established the Fort Carroll Temporary Alternate Channel, a third alternate channel on the northeast side of the main channel to provide limited access for commercially essential vessels. ⚓️.
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On Sunday, May 12, the Unified Command is scheduled to use precision cuts made with small charges to remove a large section of #FSKBridge wreckage from the M/V DALI. This is expected to take place in the late afternoon and will depend on environmental/operational factors.
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The Unified Command salvage operations remain ongoing at the site of the Key Bridge incident this weekend. 🏗 The scale of this effort is well demonstrated in these photos from Saturday, where salvage operators can be seen assessing debris from the collapse. #FSKBridge
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The latest update to our #FSKBridge Salvage Operations Plan includes a better visual scale for understanding our efforts to open a limited access channel within the federal channel span.
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Divers are working in virtual darkness because when lit their view is similar to driving through a heavy snowfall at night with high-beam headlights on -- divers must be guided via detailed verbal directions from operators in vessels topside viewing real-time CODA imagery. 3/3.
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NEW TODAY: With the removal of a 560-ton section of structural steel on April 22, USACE has cleared enough wreckage from a 35-foot-deep Limited Access Channel, in accordance with our commitment to deliver it by the end of April.
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Only 3 Spanish-language songs had topped the Billboard Hot 100 charts: "La Bamba" by Los Lobos (1987), "Macarena" by Los del Río (1996), and "Despacito" by Luis Fonsi/Daddy Yankee ft Justin Bieber (2017). #usarmy #armyequityinclusion #peoplefirst #hispanicheritagemonth
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Unified Command salvage teams continue wreckage removal at the #FSKBridge site while officials await results from a dive survey before proceeding with plans to re-float and move the M/V DALI to Seagirt Marine Terminal in the @portofbalt. 🏗
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🏰 “Priority 1" remains clearing the 50’ deep federal navigation channel. This plan also includes "Priority 1A," a concurrent effort to establish a Limited Access Channel 280' wide by 35' deep (shown in yellow). #FSKBridge 1/3
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📣 Watch now: @USACEHQ Commander and Chief of Engineers Lt. Gen. Scott Spellmon explains the multi-phased approach to our efforts to reopen this vital Baltimore waterway as safely and quickly as possible. Full #FSKBridge interview:
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The Unified Command on Sunday began removing containers onboard DALI at the #FSKBridge site in an effort to gain access to the portion of the Key Bridge that lies atop the ship. 🏗
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The container/feeder barge Columbia Freedom, the first inbound commercial vessel through the #FSKBridge Limited Access Channel, transited early Thursday evening.
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A #snowyowl was caught on camera recently at #PoplarIsland, which has been identified by @USFWS, @MarylandDNR & many other resource management agencies as a valuable nesting & nursery area for many species of birds like the snowy owl, including eagles, osprey, heron, and egret.
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“We are not taking our foot off the gas.” 🏗️ Salvage crews have expanded the Port of Baltimore limited access channel to a width of 400 feet and a depth of 50 feet, allowing for the transit of all deep-draft commercial vessels calling on the Port of Baltimore.
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The Washington Aqueduct has recommended issuance of a Boil Water Advisory for DC and portions of Northern VA due to elevated turbidity levels in water supply caused by increases in algae blooms in the Potomac River:
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Unified Command salvors are tentatively scheduled to use small charges today, May 13, around 5:00pm, to make precision cuts to #FSKBridge wreckage. Here's a thread of what you need to know:.
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"This is our home, that's our bridge." ⚓ In the earliest hours after the collapse, Jacob and his teammates aboard the CATLETT were on site to help, and they have since provided sonar capabilities and serve as a work platform for partners from the Unified Command. #FSKBridge
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Maj. Gen. William (Butch) Graham, @USACEHQ Deputy Chief of Engineers & Deputy Commanding General, joined @GovWesMoore, @SecretaryPete, and Unified Command leadership for a press conference at the @portofbalt to mark the reopening of the Fort McHenry Federal Channel on June 10.
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A busy weekend for the #FSKBridge 35' Limited Access Channel and our partners at the @portofbalt as the first container ship at Seagirt arrived Sunday:.
Another milestone today! First container ship to arrive at Seagirt Terminal since the crisis began. @MSCCargo Passion III came through 35-foot-deep temporary channel. Nearly 1,000 containers handled by about 80 @ILALocal333 workers. We're getting there. @portsamericahq
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Latest update: Unified Command prepares for opening of temporary alternate channel around Key Bridge wreckage for commercially essential vessels. 🤝 This action is part of a phased approach to opening the main channel.
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Unified Command leadership on Thursday hosted a congressional delegation at the #FSKBridge site on board the @USCG USCGC James Rankin, "The Keeper of the Bay."
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Salvors with the Unified Command are preparing charges for upcoming precision cuts to the large #FSKBridge span resting on the bow of the M/V DALI. 🏗
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Our engineers are now placing devices on each beam to understand how much force each beam is under — either how much it's holding or how much it's placing on another beam. #FKSBridge 1/3
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As we continue to sweep the #FSKBridge site collecting sonar, LiDAR, and magnetometer data, our teams are hard at work to identify and investigate any high spots to ensure there are no residual hazards to navigation.
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🏰 Baltimore District is ready to leverage nearly two centuries of engineering expertise in Baltimore Harbor and across Maryland to work alongside @GovWesMoore and our local, state, and federal partners as we begin to clear debris and prepare to reopen this vital waterway.
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Latest update: First vessel passes through temporary alternate channel around Key Bridge wreckage 📣 The barge, which transited Monday afternoon, is used to supply jet fuel to the Department of Defense and was en route to Dover Air Force Base.
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🏗️ The Chesapeake 1000 is the largest floating crane on the Eastern Seaboard, and removing these large pieces will help open a Limited Access Channel that allows one-way ship traffic to the @portofbalt.
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The intentional resemblance of the #Washington Aqueduct's Castle Gatehouse to the Army Corps of Engineers insignia allows the building to serve as a symbol of the Army Corps’ contributions to #DC’s public health.
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"I consider it a privilege to have responded during the 9/11 World Trade Center recovery efforts--I'm happy I had the opportunity to help others on such a basic human level," said Maria de la Torre, USACE, Baltimore District Real Property Services Field Office program manager.
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USACE completed the acquisition of lands & executed a relocation agreement for Arlington National Cemetery Southern Expansion. This project will enable the @USArmy to continue the honored tradition of laying to rest our veterans well into the future. #PeopleFirst | #MissionAlways
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Latest update: Unified Command opens second temporary alternate channel around Key Bridge wreckage for commercially essential vessels 🚧
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The flags flying over Baltimore's waterways are certainly famous throughout history (we're looking at you, Star Spangled Banner), and these stars and stripes seen during the recent #FSKBridge response were a fitting addition to the roster. 🇺🇸 Happy 4th of July!
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“Mission first, people always.” 🤝 As Col. Pinchasin explained in a press conference with @GovWesMoore, this joint salvage & recovery mission means our engineers & operators know the care required to balance our efforts with the search for those lost in the #FSKBridge wreckage.
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✅ 3 main steps in this response: 1) survey & map underwater hazards; 2) develop & execute the salvage plan; 3) safely execute the salvage work. We are undertaking this mission with care and precision; it is an iterative process repeated after each piece of wreckage is removed.
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The latest update to our Navigation Capabilities infographic shows the three Temporary Alternate Channels surveyed & opened by the @USCG since the #FSKBridge collapse, plus details about ongoing efforts to open a 35' deep limited access channel within the federal channel span.
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@portofbalt With the assistance of five tugboats and other support vessels, the M/V DALI was towed and pushed 2.5 miles, arriving at a local marine terminal at approximately 9 a.m. This milestone allows all pre-collapse deep-draft commercial vessels to enter and exit the Port of Baltimore.
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Unified Command leadership on Friday briefed @SenatorCarper (Chairman, Senate @EPWCmte) at the #FSKBridge site following our full restoration of the Fort McHenry Federal Channel.
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#USACE drift removal crews pulled a small alien spacecraft out of waters at the confluence of the Anacostia & Potomac rivers early this morning as part of their day-to-day mission of clearing debris from channels that could be hazardous to navigation.
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The metal framework extending above the waterline (the blue line in some images) is currently slated to be removed by the end of April, making way for a 35-foot-deep by 280-foot-wide Limited Access Channel within the federal channel span.
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Due to weather-related operational delays, the precision cuts originally scheduled for Sunday have been moved to Monday, May 13, around 5:00pm.
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@portofbalt “This marks the resumption of commercial vessel transits in and out of the @portofbalt,” said the Unified Command. Read more:
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🏰 The current specs of the Unified Command's "limited access channel" (50-foot depth x 400-foot width) allow all shipping traffic to enter/exit the @portofbalt, and these final lifts are an important next step to re-opening the full 700-foot width of the navigation channel.
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Baltimore District Flood Risk Management projects helped prevent major #SusquehannaRiver flooding to communities across #PA and southern #NY during the recent high-water event that occurred over the Christmas holiday.
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Blooms generally occur during high temperatures, causing conditions in water where nutrient levels are high. Turbidity (a measure of water’s cloudiness/clarity, plays a crucial role in assessing water quality) can interfere with the effectiveness of the water treatment process.
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🚨 50 years after the Storm 🌀. 50 years ago, Hurricane Agnes’ damage across the Mid-Atlantic region tragically took 128 lives across 8 states. Entering Atlantic hurricane season, we encourage everyone to learn more about their flood risk and actions to prepare for events.
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🤝 The underwater salvage response is a joint effort of @USACEHQ and the @USNavy’s Supervisor of Salvage and Diving, overseeing the commercial dive company (@DonjonMarine) conducting the work happening in and around the federal channel — 2/3.
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The Limited Access Channel will permit larger ships in and out of the @portofbalt, such as marine tugs, Maritime Administration (MARAD) vessels, and those used for Roll-on/Roll-off shipping. The numbers in this image indicate depth & clearances from the wreckage to the surface.
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Have you seen the @USArmy’s uniform for the Army vs. Navy game on Saturday? . Learn about the story behind the uniforms:
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In approx. 23 yrs, @ArlingtonNatl will run out of space & no longer be an active cemetery. ANC encourages the public & its various stakeholders to continue to share their thoughts on an important issue - the future of ANC:
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Nearly 50% of the 700-foot-wide Fort McHenry Federal Channel had already been cleared to an operational depth of 48 feet before the controlled demolition.
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Boasting a 1,000-metric-ton capacity, the grab will be used to recover a significant portion of the 50,000 tons of wreckage from the #FSKBridge collapse site.
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Today is #NationalKoreanAmericanDay! Korean American Day commemorates the arrival of the first Korean immigrants to the U.S., January 13, 1903, & honors the significant contributions that Korean Americans have made throughout history. Photo: Korean War Veterans Memorial in D.C.
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Our crew onboard Survey Vessel CATLETT recently captured this image of the #shipwrecked Herbert D. Maxwell while surveying channels in the Chesapeake Channel. The schooner sank in 1912 & now sits mostly intact off the western shore of #KentIsland. #ChesapeakeBay #Marylandhistory
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Our continued work involves digging out the bottom cord of the “section four” truss seen in the water here, which will be cut into three sections to safely lift.
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Aug. 14 is #NavajoCodeTalkersDay. We recognize & celebrate the service & sacrifice of the 29 men that developed an unbreakable code that would be used across the Pacific during #WWII. 📸: Navajo @USMC Code-Talker Recruits being Sworn in at Fort Wingate, NM. @USNatArchives
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#STEM is all around us -- even on #Thanksgiving! #Robots and @FIRSTweets members cut the ribbon @Macys parade! http://t.co/GWterbaxMo.
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More than 365 commercial vessels have transited the four temporary alternate channels, the first of which was opened six days after the March 26 bridge collapse.
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It’s #ChesapeakeBayAwarenessWeek, so we’re highlighting the recent tidal marsh planting efforts underway following dredge material placement on Maryland’s Deal Island as part of our maintenance of the federal navigation channel on the Wicomico River 🌾
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#OnThisDay in 1814, the British forces began bombarding #FortMcHenry, in Baltimore. #DYK from 1836 to 1839 USACE repaired & renovated Fort McHenry? Over the next 90 years, it served various military functions—infantry garrison, prisoner of war camp, training facility & hospital.
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For the last day of #MilitaryFamilyAppreciationMonth, we would like to highlight Joint Base Myer-Henderson Hall! There have been several #ArmyFamilyHousing renovation projects at Fort Myer and Fort McNair. #ArmyFamily ❤️
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During the Pentagon's construction, the U.S. Army Corps of Engineers built in excess strength and structural redundancies that would end up saving hundreds and potentially thousands of lives on 9/11. #NeverForget #USArmy
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Surveying and removal of steel at and below the 50-foot mud-line will continue to ensure future dredging operations are not impacted.
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🏗️ In this footage from Friday (June 7), the Chesapeake 1000 crane and attached hydraulic grabber wrestle a 90-ton piece of residual wreckage from the Federal Channel.
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Climbing the U.S. Capitol Dome 🏛️ At the invitation of @RepAndyHarrisMD, Baltimore District Commander Col. Francis Pera recently visited the U.S. Capitol for introductory meetings and to participate in a tour of the Capitol Dome.
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The exact time of the precision cuts will depend on multiple environmental and operational factors. Read the full release:
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